Ultrasonic Waves to Power Future Nanomachines A team of materials scientists has developed an innovative nano-scale power supply which is fueled by ultrasonic waves. The scientists predict that their nanogenerator could power the next generation of nanomachines.

Better, Stronger, Faster In the 1970s, the idea of building a bionic man was merely fantastical. Now we have bionic eyes and limbs, and chemists are creating artificial bodily tissues to rival nature's own.

Beyond Blue High-definition DVD movies and players based on blue lasers have only just arrived on the market, but already a new generation is in sight, promising another fivefold increase in storage density. The key to making UV-emitting devices is likely to be zinc oxide.